current tests
	test the keyboard shortcut, by sending an event;
		e=document.createEvent(...
		e.initEvent(...
		e.keyCode = ...
		document.body.dispatchEvent(e)
	window.close directly after logging to the console

make tests for chromium and firefox engines
	https://developer.mozilla.org/en/Automated_testing_tips_and_tricks
	https://developer.mozilla.org/en/Mozmill_Tests/Addon_tests